This article has been cited by other articles in PMC. To assess, firstly, the validity of the enthesis index published by Mander Mander enthesis index MEI and, secondly, to investigate whether it is possible to define a new enthesis index that is less time consuming to perform with at least similar or better properties.
Extensive Definition A tendon or sinew is a tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension. Tendons are similar to ligament s except that ligaments join one bone to another.
Tendons and muscles work together and can only exert a pulling force. Anatomy The origin of a tendon is where it joins to a muscle. Collagen fibers from within the muscle organ are continuous with those of the tendon.
A tendon inserts into bone at an enthesis where the collagen fibers are mineralized and integrated into bone tissue. While they exert no pulling force of their own, tendons transfer the contractions of muscles and can exert an elastic force if forcibly stretched.
Structure Normal healthy tendons are composed of Define enthesis arrays of collagen fibers closely packed together. These collagens are held together with other proteins, particularly the proteoglycandecorin and, in compressed regions of tendon, aggrecan.
The tenocytes produce the collagen molecules which aggregate end-to-end and side-to-side to produce collagen fibrils. Fibril bundles are organized to form fibers with the elongated tenocytes closely packed between them. Collagen fibers coalesce into macroaggregates. Groups of macroaggregates are bounded by connective tissue endotendon and are termed fascicles.
Groups of fascicles are bounded by the epitendon and peritendon to form the tendon organ. Blood vessels may be visualized within the endotendon running parallel to collagen fibers, with occasional branching transverse anastomoses.
The internal tendon bulk is thought to contain no nerve fibers, but the epi- and peritendon contain nerve endings, while Golgi tendon organs are present at the junction between tendon and muscle. Tendon length varies in all major groups and from person to person.
Tendon length is practically the discerning factor where muscle size and potential muscle size is concerned.
For example, should all other relevant biological factors be equal, a man with a shorter tendons and a longer biceps muscle will have greater potential for muscle mass than a man with a longer tendon and a shorter muscle.
Successful bodybuilders will generally have shorter tendons. Conversely, in sports requiring athletes to excel in actions such as running or jumping, it is beneficial to have longer than average Achilles tendon and a shorter calf muscle.
Tendon length is determined by genetic predisposition, and has not been shown to either increase or decrease in response to environment, unlike muscles which can be shortened by trauma, use imbalances and a lack of recovery and stretching.
Pathology Tendonitis refers to inflammation of a tendon. Tendinosis refers to non-inflammatory injury to the tendon at the cellular level.
Other information The Achilles tendon is a particularly large tendon connecting the heel to the muscles of the calf. It is so named because the mythic hero Achilles was said to have been killed due to an injury to this area.
Sinew was also widely used throughout pre-industrial eras as a tough, durable fiber. Some specific uses include using sinew as thread for sewing, attaching feathers to arrows see fletchlashing tool blades to shafts, etc.
It also recommended in survival guides as a material from which strong cordage can be made for items like traps or living structures. Tendon must be treated in specific ways to function usefully for these purposes.
Inuit and other circumpolar people utilized sinew as the only cordage for all domestic purposes due to the lack of other suitable fiber sources in their ecological habitats.
The elastic properties of particular sinews were also used in composite recurved bows favoured by the steppe nomads of Eurasia.
The first stone throwing artillery also used the elastic properties of sinew. Tendon particularly beef tendon is used as a food in some Asian cuisines often served at Yum Cha or Dim Sum restaurants.Hypermobility, Hyperlaxity, and Enthesis There are children and teenagers who have exaggerated but benign pains that are similar to growing pains.
Find synonyms, antonyms and the meaning of the word enthesize in our free online dictionary! Find words starting with enthesize and anagrams of enthesize.
Find words starting with enthesize and anagrams of enthesize. The lack of a definition of inflammatory articular disease and the recent findings with the newer imaging techniques create problems with the diagnosis of PsA, especially when the .
enthesis definition: Noun (plural entheses) 1. (anatomy) The point at which a tendon, ligament, or muscle inserts into a plombier-nemours.comd terms 2.
enthesopathy 3. enthesitis Origin From Ancient Greek ἔνθεσις (enthesis, “putting in, insertion”. Enthesis (plural: entheses) is the point at which a tendon or ligament  or muscle  inserts into bone, where the collagen fibers are mineralized and integrated into bone tissue.
The collagen to bone interface is via Sharpey's fibers.
Enthesitis refers to pain and swelling of the enthesis, which is the name for the location where the tendon and ligaments insert at the bone. This typically occurs at .